System.Globalization.GregorianCalendarHelper.GetGregorianYear C# (CSharp) Méthode

        internal int GetGregorianYear(int year, int era) {
            if (year < 0) {
                throw new ArgumentOutOfRangeException("year",
                    Environment.GetResourceString("ArgumentOutOfRange_NeedNonNegNum")); 
            }            

            if (era == Calendar.CurrentEra) {
                era = m_Cal.CurrentEraValue;
            }
            
            for (int i = 0; i < m_EraInfo.Length; i++) {
                if (era == m_EraInfo[i].era) {
                    if (year < m_EraInfo[i].minEraYear || year > m_EraInfo[i].maxEraYear) {
                        throw new ArgumentOutOfRangeException(
                                    "year", 
                                    String.Format(
                                        CultureInfo.CurrentCulture,
                                        Environment.GetResourceString("ArgumentOutOfRange_Range"), 
                                        m_EraInfo[i].minEraYear, 
                                        m_EraInfo[i].maxEraYear));
                    }
                    return (m_EraInfo[i].yearOffset + year);
                }
            }
            throw new ArgumentOutOfRangeException("era", Environment.GetResourceString("ArgumentOutOfRange_InvalidEraValue"));
        }